Rudimentary spinous processes, 317 S Sacral adjustments, 323, 324 Sand filter, 128, 129, 130 Sandstone rock, 123 Sanitary art, 14 Sanitary environment, 20 Measures in production of milk, 257 Requirements of floors, 33 Science, 14 Sanitation and hygiene, distinction between, 14 Sanitation, sick room hygiene, 217 Sapremia, 177 Saprophytes, 176 Sarcolactic, 267 Scavengers, 226 School building, 140 Basement, 141 Blackboards, 145 Charts, 146 Cloakrooms, 146 Corridors, 141 Heating, 144 Lighting of, 142 School desks, 144 School room, size of, 141 Stairways, 140 Toilets, 147 Ventilation of, 143 Water supply, 146 Window area, 142 Window shades, 143 School hygiene, age of beginner, 148 Peculiarities of child, 149 Personal factors, 147 Play periods, 148 Recess, 150 School dis-eases, 151 School desks, 144 School dis-eases, 151 School hygiene, 140 School life, functions of, 147 School room, size of, 141 Science, Sanitary, 14 Screens, 221 Scurvy, 376 Major adjustment, 376 Symptoms, 376 Sea level, 54 Seal, 37 Secretions, 50 Sedentary occupations, 160 Sedimentation, 115, 128 Self purification of water, 127 Semi-indirect lighting, 101 Septic method of sewage purification, 133 Septicemia, 177 Serous circulation, 61 Sewage, crude, 133 Sewage disposal, 132 Sewage pollution, 116 Sewage purification, septic method, 133 Sewage, removal of, 132 Sewage system of body, 16 Sewerage system, 39 Sewer air, 39 Sewer gas, 39 Shallow wells, 123 Shape of head, 294 Shingles, 34 Sick room, 217 Bed and bedding of, 222 Bed pan, 223 Care of, 220 Disposal of excreta, 223 Draw sheet, 222 Sponge bath, 224 Ventilation of, 221 Sight, 289 Siphonage, 38 Site, building, 28 Site of school building, 140 Slate and tile roofs, 34 Sleep, 278 Sleeping rooms or nurseries, 282 Slow sand filter, 130 Smallpox, 173 Smell, 291 Sneezing, 327 Snow water, 113 Soft water, 110 Soil, 30 Soiled linen, 222 Soup stock, 268 Sources of communication, 22 Source of food, 237 Source of infection, 23 Source of impurities in air, 67 Source of impurities in water, 118 Spasmodic laryngitis, 332 Special senses, 289 Speech, age at which developed, 291 Sphincter muscle, 386 Spinograph, 317 Spirilli, 173 Sponge bath, 224 Sporadic, 178 Spring water, 118 Sputum, 223 Stable, 259 Stage of exposure, 172 Stagnant water, 32, 116, 259 Stairways, 37, 140 Starvation, 234 States of aggregation of water, 108 Steam, 115, 212 Steam heating, 91 Steel floor beams, 37 Stegomyia calopus, 114 Stenosis, 334 Stenosis hypertrophic of the pylorus, 357 Equation, 358 Family, 358 Major adjustment, 359 Symptoms, 357 Sterile milk, 260